Fastener



lF. S. CARR. FASTENER. APPLICATION FILED MAR. B. I92I.

Mmmm Oct. 3L 1922.

Patented @et 3l, i922.

rTES

FRED S. GARR, OF NEWTON, MASSACHUSETTS, SSIGNOR TO CARR FASTNB COMPANY,OF CAlVIBItIDGE, MASSACHUSETTS, A OORPGRATION 0F MANE.

res'rnnnn.

Application ined Mai-eh s,

10 all whom t may cof/tecra.'

Be it known that l, FRED S. CARR, a citizen of the United States, andaresident of Newton, in the county of Middlesex and Commonwealth ofhflassachusetts, have invented an lmprovement in Fasteners, of which.the following description, in connection with the accompanying drawings,is a specification, like characters on the drawings representing likeparts.

This invention pertains to improvements in separable fasteners. It isamong the objects of the invention to provide a separable fastener ofsimple construction, great durability and of superior holding power.`

In the drawings, which show a preferred forni of one illustrativeembodiment of my invention Figure 1 is an elevation of two pieces offabric to which the stud and socket niembers of a preferred form ofseparable fastener are attached;

Fig. 2 is a section on the line 2-2 of F ig. l;

Fig. 3 is a front elevation of the preferred` forni of socketillustrated in Figs. 1 and 2;

Fig. lis an elevation of the preferred form of stud shown in Figs. 1 and2; and

Fig. 5 is a section through the fastener on the line 5-5 of Fig. 1.

Referring to the drawings and to the preferred form of my inventionselected for illustrative purposes, I have shown a stud including a head6, a neck 7 and a base 8, and secured to the stud-carrying fabric 9 inany suitable way as by stitching 10. I have shown a cooperating socketincluding a casing 11 providing a stud-receiving plate 'l2 having astud-receiving aperture 13 therein and containing a spring 14 presentingtwo portions intersecting the studreceiving aperture 13. The preferredforin of spring will be more fully described hereinafter. The preferredforni of socket illustrated is sewn to the socket-carrying fabric 15 bystitches 16. There my invention is utilized in connection with fasteningelements adapted to be sewn to their earrying fabrics, prefer to makethe casing 11 in one piece and to provide for holding in the spring 14eby a flanged-over rim 17 of the casing. The stud-receiving aperture 13is preferably notched at one side providing the recess 18 communicatingwith the studreceiving aperture 13 and adapted to per- 1921. serial No.450,743.

.mit the stud to shift laterally in the socket to a small extent,sufficient to prevent sepaation of stud and socket by the resolution offorces arising from lateral strain between stud and socket urging thestud toward the notch, or in thegeneral direction of the notch, thenotch, however, preferably being of such dimension relative to the neckand head of the stud that separation of` stud and socket may be elfectedeven while under considerable lateral strain by a convenient tippingmovement at an angle somewhat greater `than that likely to be producedby the resolution of forces arising from lateral strains in thedirection indicated.

The spring 14, as above described, preferably intersects thestud-receiving aperture 13 at opposite sides thereof as at 19 and 20.Between these portions, 'the spring extends adjacent to the peripheralwall of the socket, underlying the liange 17 at 21. At the other side ofthe portions 19 and 20 the spring underlies the flange 17 at 22 and 23,being bent backwardly and outwardly until they again underlie the flange17 at the sides of the casine at 24 and 25, these preferably being, asillustrated, adjacent terminal reverse hen( exteiiding outwardly anddownwardly to the ends of the spring at 26 and LT. The bends 22 and 23are preferably spaced away from the marginal wall of the casing so thatthe resiliency of the spring will not be impaired. by bearing againstthe side of the casing at these points. Similarly, the'bends at 2d and25 are also preferably spaced away from the peripheral wall. of thecasings. The stud-engaging portions 19 and 2() of the spring arepreferably inclined, preferably in part only as illustrated, so as totend to press or cani the stud toward the 'notch 18. The inclinedportions may be provided by offsets as illustrated, or in any othersuitable way.

The spring may, if desired, be positioned relative to its casing by aprojection 31 extending within the curve of the spring adjacent itscentral portion 21. A

1When the head of the stud 6 is entered tluxiiuglrthe stud-ii'eceiyingaperture 13 in the casing, the stud-engaging spring jaws 19 and 2() arespread apart and gripv the neck T of the stud when the latter is fullyentered in the socket. The notch 1.8 in the socket is preferablyadjacent the edge 30 of the socket-carrying fabric l5, so that thenormal lateral strain between stud and socket will lead the neck of thestud into the notch 18. this notch, the resolution of forces arisingfrom lateral strain will not cause the stud to tip in such a Way as tobecome separated ifroln the socket. On the other hand, when it isdesired to separate the stud from the socket, a vpull on either the studor socket in either an axial `direction or one producing a tip somewhat(ieater than thatI arisingiroin .the resolution oit 'forces underlateral strain will cause the stud to be released :troni the socket enenthough a considerable amount et lateral strain between stud and socketexists at the time ot separation.

lfhile l have shown and described a prei terred :toria otone embodimentot my invention, it vwill be understood that changes Vin volriiomission, substitution,` alteration and `reversal oit parts, and even.changes in the inode of operation, may be made Without departing fromthe scope of my invention, which is best delined in the tollowing`claims.

Claims.

l. A separable fastener comprising, in combination, a stud having` ahead and a neck presenting between them a sloping' shoulder, and asocket including a. casini' having a studereceiving aperture therein anda notch communicating with said aperture, said casing carrying a springpresent-ing tiro generalhi7 parallelly disposed portions in- When thestud is entered in terseeting' said aperture, said portions inclined tourge said neck ot said stud toward `said notch.

aperture, and a spring in said casing prev senting portions exist-aidingsi'ibstantiallyY across said socket and intersecting` said apen ture,said portions disposed to press said neck of said stud toward saidnotch.

it. In. a stud and socket fastener, a socket including acasing having;`a stud-receiringil aperture therein and a W-shaped spring' therein, ytworuns ot said spring;v forming the central portions of the. Wintersecting said aperture and presenting' -oifset portions in-wtersecting said aperture to press a stud entered through said apertureagainst that side ot the aperture generali)r4 opposite said oltsetportions.

In testimony whereof, I have signed my name to this specification. Y

' FRED S. CARR.

